//
//  MLMainTabBar.swift
//  Weibo
//
//  Created by 李亮亮 on 16/4/7.
//  Copyright © 2016年 Big Fish. All rights reserved.
//

import UIKit

class MLMainTabBar: UITabBar {

    override init(frame: CGRect) {
        super.init(frame: frame)
        
        addSubview(plusBtn)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        
        let w = self.frame.width / 5
        let h = self.frame.height
        let rect = CGRectMake(0, 0, w, h)
    
        var index: CGFloat = 0
        for subView in subviews {
            
            if subView.isKindOfClass(NSClassFromString("UITabBarButton")!) {
                
//                subView.frame = CGRectMake(index * w, 0, w, h)
                subView.frame = CGRectOffset(rect, index * w, 0)
//                if index == 1 {
//                    index++
//                }
//                index++
                
                index += (index == 1) ? 2 : 1
            }
        }
        
        plusBtn.frame = CGRectOffset(rect, 2 * w, 0)
        bringSubviewToFront(plusBtn)
        
    }
    
    
    lazy var plusBtn: UIButton = {
       
        let btn = UIButton()
        
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: .Normal)
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button_highlighted"), forState: .Highlighted)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: .Normal)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add_highlighted"), forState: .Highlighted)
        
        return btn
    }()
    
    
    
    
}
